Concrete reenforcement



Feb. 16 1926.

- 1,573,735 G. M. NELSCN CONCRETE REENFORCEMENT Filed May 5,.-1924 2 sheets-Sheet 1 ATTORNEYS.

INVENTOR G EUR5 E MJVELSUN '--"'Fb. 16 192s. 1,513,135

G. M. NELSON CONCRETE REENFoRcEyENT Filed May 5; 1924 2 sheets-sheet a I l" se 6.

INVEN OR ATTORNEYS- T HEURE EMIVLSUN 45 lof my corner units -showing the perfora- Cil Patented Feb. 16, 1926.

e UNiTEo lerares lPATENT OFFICE.

GEORGE ivi. NELsOmOF MONTEREY, cALrnORivrA.v

Y ooivovRnTE AnniamoiaoEimNfi.

Apiiiication flied May s,

To all whom t may concern Be it Vknown that I, GEORGE citizen of the United States, and a resident oit Monterey, county o" Monterey, State of California, have invented a new and useful Concrete leenforcement, of which the 'Olfy lowing is a specification.; Y

This rinvention relates Lto the i'eentoicement oi concrete, either when used oi' walls, columns, floors, concrete blocks, also',v y

xAlso suoli a reenforc'ement Whichlwill present a series of imbedded met-al aroheswithin the concrete to stiien it and make'it more resistant to shocks and in case of walls or floors, etc., of greater resistance to a force applied perpendicular to the plane of the wall or floor; Y

Also a means of reeiiforcing the lextreme Y corner of posts, columns, projecting `Wall corners, etc., and of irmly bracing such cor-l ners against the lmain reenforcements within the body of the concrete. y

I secure the objects above outlined by the concrete reenforcement as shownin the accompanying drawings and in which Figure 1 is across section of a concrete post or column reenforced according to my invention, and. the reenforcementV is shown of a size suitable for'aQOur-inch post or wall; Y

Figure 2 is a reduced sectiornof a portion oi"- a wall, floor, or block with my assembled reenforcing unitsY imbedded therein;

Figure 3 is a perspective elevation of Yone tions, ribs and interlocking lugs; Y vFigure l is a similar perspective of the lower end'only of a similar unit showing the straddling lugs on its lower edge adapted to engage the upper edge of the unitshown in Figure 3; 7 f f Figure 5 is a section otFigure Sasseen from the line 5 5 thereof;

M. NELSON, a

- tures n plates (1)..

`integral with the ad] .j The plates are iny eiiect strips or 1924. i seriai 110.711,075. c l

yFigure 6 shows `in cross sectionja modiiied form of'iny arched plate. Intakingup a detailed description oil the :torceinent Yembraces three cooperating fea- (l) Aiclied .(2) lsmaila; tying pistes (2). 3) Straight corner plates The arch'edp'and tie plates are completely enclosed. within-'the concrete mass (il) and ihe corner plates extend to the outer surface and-have a flange (5) formed On the extreme f edge' to lmake aV slightly curved exposed 'metal corner to the block, post or outside wall corner. l

In Ypracticethe corner plates"(3) are made t acent arched indicated in the figures. a 'f channel for-msseveral feetin ylength andiall are preferably perforated and ribbed as shown in'l Figure respectively at (6) and (7 The ribbing and perforating of the plates extend to withinA aboutG inches of the ends and may be modified considerably from the arrangement shown, depending onthe size of the Vplates .and their particular use, thev particular arrangementV being determined 'from the' stresses whichthe concrete will be subjected to when finished.

' The plates joiny endwiseby simple` straddling llugs (8) v`On one plate which engage Opposite sides of the plate below and the plates engage along their vertical edges by lugs or tongues (9) which enter slots (10) along the-edges of adjacent plates when assembled.l f v drawings. it should be 'noted that -inv reenv plate as In place rof the lugs (9) being formed on c the plates as shown, additional slots V(l1) may be used but in this case separate tying stripsl would be required ito engage the slots and which is 'avoided having the lugs projecting roin'one Aplate to engage the slots of thenext. Y- L f v v When assembling my reenforcement for a Wall'as shown in .Figure 2 the cross tie plates (2) being formed with offset slotted verticalrmargins (12)"are adapted to receive through their slots y the same lug (9) from one archedY plate after having passed'the slots in thefneXt arched plate.

The slots 10 in the margins l2 ot plates (SO or channel likeV interlocking 2 correspond precisely to the slots l0 of Figure l, being vertically spaced to receive the lugs 9 of the abutting plate in the same manner.

The lugs or tongues (9) are preferably so shaped that they will resiliently spring into the slots of the adjacent plates Without .the necessity ot' bending them over, so as to hold the assemblage together until the concrete is set around the saine.

llt/Then pouring a Wall or column having outside corners, or in molding a building block, the forms touch the Corner flanges (5) as indicated iirFignre .2 Where a portion et a forni is shown in'positio-n .at (18). lf the flange should not lit tightly against the inner sides oit the form the con- -crete will in some places form a shank corner outside of the flange, but this is readily removed after the form is taken down as it is my intention to expose a slightly rounded metal lcerner as shown.

My reenter-cement may be or any size or thickness to suit Whatever concrete construction is undertaken, and instead oi the arched plates Abeing curved they may be formed by angular bending as shown in Figure G and still realize the feature of the series of imbedded arches wliicli my reenforeement provides. Also it should be observed that my construction makes it possible to core the blocks or Walls between the reenforcing elements as indicated in Figure l if desired.

I claim:

l. A concrete reentorcement comprising a series of interloeked arched metal plates, said plates being perforated and havingmeans for interlocking along their edges to iorm a continuous corrugated structure.

2. A concrete reentorcement comprising a series of arched metal plates, said plates being perforated and ribbed transversely to the arched surface and having means for interlocking along their' edges to form a continuous corrugated structure.

8. il reenitorcing unit for concrete censtruction comprising a plate having lugs e5:-

Vtending from its edge and offset in opposite directions and adapted to ngage opposite sides of a plain edged abutting plate.

4. A reenforcing unit for concrete-construction coinprising an arched plate adap'w ed for interlocking With similar plates to torni a Wall reenforcement, and a aeb ei:- tending from t-hearched plateadapted to reenforce an outside cor-ner of the structure.y

5. A reentorcing unit for concrete construction comprising an archedl andpero- Yrated plate having means at the legs of the arch ada'ptino` the plate for locking at simifor the concrete interlocking both sides of the plates.

GEORGE FM. NELSON. 

